Download or read book Field Analysis of Dissolved Gases in Lake Waters by Gas Chromatography written by DAJ Murray and published by . This book was released on 1975 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Equipment for the analysis in the field of dissolved gases in lake waters by gas chromatography is described. It is portable and can be battery operated. Water from the required depth is pumped continuously through a small glass stripping device. It is equilibrated with flowing helium and the gases introduced into the gas chromatograph by a sample loop. Problems of oxygen and carbon dioxide invasion and degassing of supersaturated gases are avoided. The method will measure from 2 to 1000 micromoles/liter of carbon dioxide.

Download or read book Water Quality Parameters written by S. Barabas and published by ASTM International. This book was released on 1975 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Gas Chromatography for the Determination of Dissolved Gases in Sea Water written by V. J. Linnenbom and published by . This book was released on 1965 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Statistical Evaluation of Gas Chromatography for the Determination of Dissolved Gases in Sea Water written by V. J. Linnenbom and published by . This book was released on 1966 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: A gas chromatographic method developed by the authors for the determination of dissolved gases in sea water has been evaluated with respect to precision and accuracy by comparison with other methods. Both laboratory and shipboard measurements were employed in the evaluation. Dissolved oxygen analyses made at sea under routine conditions of operation over a period of two weeks indicate statistically significant differences in precision for the three methods tested: gas chromatography (plus or minus 1.8%), standard Winkler method (plus or minus 1.0%), and a modification of the Winkler method (plus or minus 0.51%). No significant bias was found between gas chromatography and the improved Winkler method; a small but statistically significant bias ( -1%) was found for the standard Winkler method relative to the other two. From a practical point of view, these differences are not considered important for routine survey operations. The dissolved N2 data obtained by gas chromatography are grouped about a mean value of 100% saturation, with approximately 95% of the values falling within (100 plus or minus 5)% saturation. The advantages of gas chromatography (routine analyses by relatively nonskilled personnel to obtain simultaneous measurements of more than one gas on a small volume of liquid) are felt to be sufficient to warrant its further use in oceanography. (Author).

Download or read book Dissolved Gases and Total Inorganic Carbon in Seawater written by Ray Franklin Weiss and published by . This book was released on 1970 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A gas chromatographic method for determination of dissolved gases in water written by W. J. Holtslander and published by . This book was released on 1969 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Shipboard Determination of Dissolved Gases in Sea Water by Gas Chromatography written by J. W. Swinnerton and published by . This book was released on 1962 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas chromatography was used for the routine determination of dissolved O and N in sea water. Previously, dissolved O was determined aboard ship by the standard Winkler chemical method, but dissolved N analyses were seldom made, since the manometric techniques employed were extremely difficult to carry out because of the motion of the ship. To obtain dissolved N data thus required that hundreds of samples of sea water be stored in tightly stoppered containers until the analyses could be carried out at a shorebased laboratory. The feasibility of the gas chromatographic method has been established for routine shipboard determination of dissolved gases in sea water. The method is less time consuming, sample size is reduced, no loss is experienced in either precision or sensitivity, and the instrumentation is relatively simple. In addition, the method is largely automatic and the recorded results can be analyzed at some later and more convenient time. (Author).

Download or read book Dissolved Gas Concentration in Water written by John Colt and published by Elsevier. This book was released on 2012-01-17 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquacultural, oceanographic, and fisheries engineering, as well as other disciplines, require gas solubility data to compute the equilibrium concentration. These calculations, for example, can affect the output of aquacultural production or assist in environmental consulting. Until now, published solubility information has not been available in a consistent and uniform manner in one location. This book presents solubility concentrations of major atmospheric gases (oxygen, nitrogen, argon, carbon dioxide), noble gases (helium, neon, krypton, xenon), and trace gases (hydrogen, methane, nitrous oxide) as a function of temperature, salinity, pressure, and gas composition in a variety of formats. Data, equations, and theory are explained so that the user is able to understand the calculations and problems. Furthermore, data and solubility information are presented in a range of units to make them accessible across disciplines. This book will help the reader to look at a problem from a quantitative viewpoint and better understand carbonate chemistry. Revised from the earlier edition to include more accurate carbon dioxide tables and separate sections on the solubility of noble gases, trace gases, and oxygen in brines to provide a single resource for gas solubility data. This book is essential for all students and practitioners working in aquatic fields. - A single source for highly accurate and comprehensive tables for gas solubility in aquatic systems - Information provided in tables, equations, and computer programmes - Theory is presented to better understand the equations and calculations

Download or read book Technical Report written by and published by . This book was released on 1978 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ASTM Special Technical Publication written by and published by . This book was released on 1975 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissolved Gas Concentration in Water Computation as Functions of Temperature Salinity and Pressure Revised written by John Colt and published by Elsevier. This book was released on 2012-01 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquacultural, oceanographic, and fisheries engineering, as well as other disciplines, require gas solubility data to compute the equilibrium concentration. These calculations, for example, can affect the output of aquacultural production or assist in environmental consulting. Until now, published solubility information has not been available in a consistent and uniform manner in one location. This book presents solubility concentrations of major atmospheric gases (oxygen, nitrogen, argon, carbon dioxide), noble gases (helium, neon, krypton, xenon), and trace gases (hydrogen, methane, nitrous oxide) as a function of temperature, salinity, pressure, and gas composition in a variety of formats. Data, equations, and theory are explained so that the user is able to understand the calculations and problems. Furthermore, data and solubility information are presented in a range of units to make them accessible across disciplines. This book will help the reader to look at a problem from a quantitative viewpoint and better understand carbonate chemistry. Revised from the earlier edition to include more accurate carbon dioxide tables and separate sections on the solubility of noble gases, trace gases, and oxygen in brines to provide a single resource for gas solubility data. This book is essential for all students and practitioners working in aquatic fields. A singlesource forhighly accurate and comprehensive tables for gas solubility in aquatic systemsInformation provided in tables, equations, and computer programmesTheory is presented to better understand the equations and calculations"

Download or read book Methods of Analysis by the U S Geological Survey National Water Quality Laboratory written by Donna L. Rose and published by . This book was released on 2003 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annotated Extracts of Some Papers Dealing with the Measurement and Solubility of Dissolved Atmospheric Gases with Nitrogen Gas Supersaturation and with Gas Bubble Disease in Fish written by British Columbia. Pollution Control Branch and published by . This book was released on 1974 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Study of Dissolved Gases in Sea Water by Mass Spectrometry written by Edward Warren Pough and published by . This book was released on 1970 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report summaries written by United States. Environmental Protection Agency and published by . This book was released on 1983 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Continuous Monitoring of Total Dissolved Gases in Natural Waters written by Thomas F. Jenkins and published by . This book was released on 1975 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: A preliminary investigation was undertaken to determine if a monitoring device capable of unattended operation could be configured to continuously measure total dissolved gases in natural waters. A three-component system was designed consisting of a pumping system, a continuous gas stripper, and a detector. Prototypes of the first two components were assembled and evaluated under field conditions. Based upon these results, it is possible to configure a monitor capable of unattended operation for continuous measurement of total dissolved gas concentrations in natural waters.